Mechanical Apparatus TRIZ Cases

See how duty-cycle-controlled solenoid valves replace static thermal expansion to achieve five-

See how model-based simulation optimizes HVAC, EV, and solar schedules by adapting to real-time

See how a barrier-and-wicking sensor assembly channels tank leaks toward detection points, prev

See how processor-controlled frequency adjustment avoids resonant vibration in inverter air con

Incremental bypass airflow control relieves zoned HVAC static pressure, cuts noise, and protects coils from temperature extremes.

See how a relocatable thermostat detects location changes, reuses learned parameters, and adapt

See how an inclined-edge drainage tray positioned close to the heat pump prevents condensate fr

See how networked thermostats use weather forecasts and assigned time slots to shift HVAC peak

See how segmented fans with 360-degree radial suction and multi-directional discharge expand pu

See how steady-state EER data is extracted from dynamic field operations using temperature segm

See how a motor-driven push rod and sensor system automatically opens refrigerator doors agains

See how centralized refrigerant sensors in the outdoor unit detect leaks across multiple indoor

See how rerouting refrigerant through indoor and non-defrosted outdoor units during partial def

See how staged variable-capacity DX circuits with pumped refrigerant economizer mode reduce com

See how a heating element and temperature sensor thermally coupled to a conduit wall detect vap

Short high-rate BLE advertising bursts notify multiple user devices of state changes while limiting battery drain between events.

See how an eccentric-adjusted bracket and coil spring enable dynamic tension control to improve

See how a PTC heater uses composite materials—aluminum alloy heat conductor with stainless stee

See how a MOSFET-based detection circuit monitors excessive sleep current in wireless HVAC devi

See how opposing push hoods with colliding uniform air flows form a wider clean workspace, redu

See how temperature efficiency ratio calculation detects heat medium leakage and flow abnormali

See how sub-zone segmentation and movement tracking enable presence profiles that predict occup

See how heat-source-side expansion valve regulation ensures liquid-phase refrigerant flow below

See how a dual-mode dehumidifier uses a four-way valve and separate fans to simplify flow paths

See how preset environmental patterns coordinate air supply, odor, sound, and lighting to simul

See how a non-contact snowfall detection device fixed to the grill detects snow accumulation an

See how temperature-based airflow direction switching blocks cold air entry from walls during h

By comparing remote-controller temperature with a preset value, the unit avoids cooling when the remote is outside the target room.

See how dual-circuit compressor and fan staging with variable speed control reduces HVAC power

See how measuring high-temperature duration before updating target evaporation temperature prev

Aggregate control line current reveals HVAC operating mode without multiple sensors, cutting installation cost and enabling remote fault alerts.

See how a thermostat with voice recognition, microphone, and speaker enables hands-free HVAC co

See how individually adjustable directional outlets with pressure feedback maintain air balance

See how a heat exchanger tube with nested first and second channels forms distinct refrigerant

See how environmental control devices reduce energy consumption by analyzing influencing factor

Presence-based mode switching stops the inactive room unit and starts the occupied room unit, cutting wasted electricity in multi air conditioners.

See how an external expansion valve stages refrigerant pressure reduction to prevent two-phase

See how ventilation minimizing and sensible heat prioritizing control reduce rapid energy consu

See how mathematical models segment HVAC subsystems, generate optimized set points, and enable

Dynamic lockout thresholds use outdoor temperature and cycle run time to cut short cycling, save energy, and limit auxiliary heat use.

See how open-cell porous collecting electrodes capture particles internally to extend cleaning

See how segmented storage rooms with heater-controlled outdoor unit temperature prevent refrige

See how merging display, scale, and operating elements into one unit simplifies parameter selec

See how alternating lead-lag cooling appliance designation reduces uneven wear and excessive cy

See how automated commissioning sequences, stored settings, and self-testing routines simplify

See how controlled humidity and filtration in a coating chamber stabilize drug amounts on thera

See how an evacuation line and accumulator enable fast refrigerant recovery between cooling and

See how a modular air handler uses friction-based sliding coupling to eliminate screw fastening

A central three-pipe water loop replaces indoor refrigerant units to cut energy loss, installation complexity, and operating noise.